The cost of achieving thermal comfort via altering external walls specifications in Egypt; from construction to operation through different climate change scenarios

In Egypt, the current widely used external walls are preferred in practice to minimize the project's initial cost, regardless of the negative impacts of the thermal comfort on the inhabitants, as well as the impact on the running cost of the energy consumption later.  The objective of this research is to evaluate the effect of external walls with different specifications on the project’s initial cost and running cost for achieving internal thermal comfort in the present time and under climate change. This work extends our earlier experiments on the same topic by running dynamic thermal simulations on three different climatic zones in Egypt, and for three current and predicted (future) weather data files. The recommendations resulting from the energy analysis suggest different types of walls according to location, to optimise for thermal comfort and financial benefits.